The perfect size for a community (whether a village, a religious congregation, or a military unit) is… 150. How do we know?

An Amish school

Primates live in groups, which allows them to solve problems together and reduce the risks of being caught by predators. You stick together; you stand united against a common enemy. But all the time an implicit calculation is being made to work out whether the benefits of cooperation outweigh the costs.

The psychological demands of living in large groups mean that, in primates, species-typical group size correlates rather closely with the species’ brain size. On the primate model, our oversized brain would predict a group size of around 150, the number now known as Dunbar’s Number. We find it in the typical community size of hunter-gatherer societies, in the average village size in county after county in the Domesday book, as well as in 18th-century England; it is the average parish size among the Hutterites and the Amish (fundamentalist Christians who live a communal life in the Dakotas and Pennsylvania, respectively). It is also the average personal network size – the number of people with whom you have a personalised relationship, one that is reciprocal (I’d be willing to help you out, and I know that you’d help me) as well as having a history (we both know how we came to know each other).

The Hutterites illustrate rather clearly just what’s involved. They deliberately split their communities once they exceed 150 individuals because, they maintain, you cannot run a community of more than 150 people by peer pressure alone: instead, you need a police force.

The same thinking also applies to business, management, and the military:

We see the same principle at work in the management philosophy of the Gore-Tex company, known for its breathable, waterproof fabrics. Instead of expanding factory size as its business grew, the late “Bill” Gore kept this factory size to 150 and simply built a new, completely self-contained factory next door. The result is a work community where everyone knows everyone else, and there is no need for formal line-management systems or name badges; everyone is committed to each other and to the communal vision. Has this been the secret to its unusual success as a business?

Perhaps the best example, however, remains the military. All modern armies have a similar organisational structure, mostly developed over the last 300 years by trial and error on the battlefield. The core to this is the company – typically around 120-180 in size – almost exactly Dunbar’s Number. As anyone who has been in the army will tell you, company is family, far more so than battalion or regiment.

Although wild claims have been made about the number of friends people have on Facebook, the vast majority of us have only 120-130. Yes, you can have 500 or 1,000 friends if you want to sign people up, but this seems to have more to do with competition than with real friendship.

What do men really want? Not (apparently) beautiful women, fast cars, and an endless supply of free beer; but a life of duty, service, and self-sacrifice.

Robert Crampton wonders why the contemporary Western male is not happier than his father or grandfather, when he is ‘richer, safer, healthier, more long-lived, with a huge choice of leisure pursuits, lifestyles and material goods’. The answer, at the risk of oversimplifying, is that he is looking for happiness by seeking pleasure, rather than by cultivating virtue. He is following the path of Epicurus rather than Aristotle. And it isn’t working. [“What really makes men happy?” by Robert Crampton, The Times Magazine, 27/11/10, p54-59]

Live for today, the mantra that dominates our culture, simply does not work for most men. Men want to live for tomorrow. Men need goals, plans, causes, beliefs, structures, direction. Men are not natural Epicureans. Men crave the virtue Aristotle espoused.

That virtue can be found in small, everyday ways. The morning that I came into work to start this article, one of my colleagues, Jo, waylaid me by my desk. “Robert,” she said, “you strike me as a man who might have a screwdriver in his desk.” “I haven’t, I’m afraid,” I had to say. “What do you need a screwdriver for?” “My glasses have gone floppy,” said Jo, holding out her specs, the arms of which had indeed gone floppy. “Give them here,” I said. “I’ll see what I can do.”

I spent the next ten minutes experimenting with various tools attempting to tighten the screw at the side of Jo’s glasses, trying out in succession a penknife, teaspoon and paperclip in lieu of what was actually required, a tiny Phillips screwdriver. Eventually a bent staple fitted the screw head and gained traction. Thirty seconds later, Jo’s glasses were no longer floppy. She was duly grateful, I went back to work in a glow of satisfaction, of wellbeing and, yes, of happiness.

Why did this small action make me happy? Partly, but only partly, because Jo’s a woman and I’m a man. Partly my happiness came from sticking at a slightly awkward task, seeing it through, finding a solution. Partly it came from working with my hands, which I rarely do. And partly – mostly, I think – I derived a degree of pleasure from the fact that they were someone else’s glasses. I’d done a no-strings favour. Jo had asked for my help, I’d been able to oblige. Nothing in it for me. Except, happy as it made me, it turned out there was.

It’s not just about doing little favours and getting a glow of satisfaction from them. It’s about the whole direction of one’s life.

Men have an immense capacity for self-sacrifice. Not just a capacity, I would argue, but a need. Not all men, perhaps. But most. Male self-sacrifice is there in many of the key stories and myths of our culture, from the 300 Spartans at Thermopylae to the Battle of Britain.

For most of human history, what it has meant to be a man has involved self-sacrifice. Not only the patriotic self-sacrifice of war, also the peacetime sacrifice of doing a demanding, possibly dangerous job to provide for others. Or devoting yourself to a political, social or religious cause. Or simply having children and taking full responsibility for their welfare.

But these days, most men don’t dedicate themselves to creating Utopias, and aren’t involved in wars, or mining coal, or deep-sea fishing, or striving to lift their families out of poverty. All of which is a good thing.

A lot of men reach middle age unmarried and without children, which isn’t such a good thing, in my opinion – not for society, not for them. The reason married men are happier than bachelors is not, as in the caricature, because marriage allows husbands to grow lazy while a wife runs around for us. It’s the opposite: we’re happier because we’re almost certainly, to some degree or other, acting for someone’s benefit other than our own. I became a father at 33, which seems young from where I am now. Even so, I wish I’d done it sooner.

And it’s not just that we have lost the plot as individuals. The reason we have lost the individual plot is that we do not have the social networks there to remind us what really matters.

Our fathers and grandfathers had institutions to cultivate their virtue for them: the Church, the Army, early marriage, a lifelong, cumulative career building towards expertise and respect, a trade union, a political cause, an extended family network. Such bonds have either been loosened, or are gone.

In losing their access to these institutions and beliefs, men lost something else, too: the company of other like-minded men. A couple of generations back, men would work and play exclusively with other men. We did that too much. Now we probably don’t do it enough. Many of my contemporaries socialise with their partners or not at all. They have friends, but they are in some way estranged from them.

I like these ideas. But I’m not convinced by Crampton’s solutions. He wants us to live sacrificial lives as if we were living for a higher cause (with all the generosity and virtue that our grandfathers brought to their own causes), even if we are not sure about what the foundations of our own convictions and goals are. In the absence of God he appeals to conscience. It’s certainly better to follow your conscience than not to follow it. But I don’t think you can serve your conscience. It’s your conscience that helps you to serve and give your life to something that is more important than yourself: your family, your friends, your country, your God, those in need, etc. Conscience is a means to an end. But what if you have no identifiable end?

See what you think of Cramptons concluding remarks:

So what is to be done? Join the Army? Downshift to the country and become a lumberjack? Some things you can’t control: you can’t rustle up a morally bombproof cause like the defeat of fascism to fight for. You can’t start believing in a God whom you don’t think exists. You can’t go back to the days when your grandfather dedicated himself to lifting his family out of poverty. But what you can do is take the elements worth preserving from the institutions and activities and beliefs that we have lost and put them to work again.

You don’t have to be a labourer to spend time working with your hands. You don’t have to be a soldier or a sportsman to be fit rather than fat and lazy. You don’t need to be an intellectual to read a decent book. You don’t need to pretend to be thick and crude when you’re not. You don’t need to be a hero to take some responsibility for the world around you. You don’t have to be a revolutionary – it’s better if you’re not – to make that world a better place in small ways. You don’t have to be a monk to spend time alone to work out what you think about something, and what you need to do.

And you don’t, of course, need to be a believer to live according to a moral code. Most surveys conclude that the devout are happier than the faithless. It’s not clear why that is, but it might be because the belief that you are being judged by a higher authority is a superbly moderating influence on male behaviour. You don’t have to call that higher authority God. You can call it conscience. Pretty much everybody has one. When we live in rough accordance with our consciences, we’re happy. When we don’t, we’re not.

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About this blog

Looking across the landscape of contemporary culture - at the arts, science, religion, politics, philosophy; sorting through the jumble; seeing what stands out, what unsettles, what intrigues, what connects, what sheds light. Father Stephen Wang is a Catholic priest in the Diocese of Westminster, London. He is currently Senior University Chaplain, based at Newman House Catholic Chaplaincy. [Banner photo with kind permission of Matthew Powell]

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